Pin Assignments for I/O Connectors: Dell Inspiron 4150
Pin
Signal
I/O Definition
1
EXK_MSDATA I/O External keyboard/keypad/mouse data
2
KBD_DATA
I
Keyboard data
3
GND
N/A Signal ground
4
EXK_MSPWR
N/A External keyboard/keypad/mouse supply voltage
5
EXK_MSCLK
I/O External keyboard/keypad/mouse clock
6
KBD_CLK
I
Keyboard clock
Shell N/A
N/A Chassis ground
USB Connector
Use the USB connector to attach one or more USB devices, such as a mouse, to the
computer. USB is a peripheral standard that enables automatic detection of USB-
compliant peripheral devices.
file:///F|/Service%20Manuals/Dell/Inspiron/4150/pinouts.htm (7 of 10) [2/28/2004 7:28:14 AM]